公开(公告)号：US10356539B2

公开(公告)日：2019-07-16

申请号：US14977126

申请日：2015-12-21

Applicant: Magneti Marelli S.p.A.

Inventor： Antonio Marcelli ,  Saverio Armeni ,  Walter Nesci

IPC: G10K15/02 ,  H04R29/00 ,  F01N9/00 ,  F01N1/06

Abstract: A method for performing an active profiling of the sound emitted by a vehicle engine including the steps of injecting second acoustic waves (MW), which are able to combine with the first acoustic waves (EW) in a merge point in said primary propagation path and to generate third resulting acoustic waves (RW); and generating a driving signal for the diffuser by regulating the amplitude of harmonics of the driving signal (SP) as a function of reference acoustic waves and of a workpoint of the engine, calculating equalization coefficients (α1, . . . , αM) to be applied to the amplitudes of said harmonics of the driving signal (SP) via a self-tuning procedure, and comparing the reference acoustic waves (TW) with a simulation (SRW) of the resulting waves. The simulation (SRW) is obtained by applying to a simulation of the second acoustic waves a model of the secondary propagation path.

公开(公告)号：US10261237B2

公开(公告)日：2019-04-16

申请号：US15519652

申请日：2015-10-30

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Marco Maraldo ,  Sylvain Mouard

IPC: B60K37/02 ,  F21V8/00 ,  B60K35/00 ,  G02B6/00 ,  G09F13/04

Abstract: An instrument cluster, in particular for a vehicle, has a dial with a plurality of graphic areas, which are backlit by a device provided with at least one light source, with a front light-guiding element having a front face at least partially covered by a back surface of the dial, and with a rear light-guiding element; the latter has a receiving portion facing said light source and a transmitting portion, which transmits and guides the light received by the receiving portion and is spaced apart from and faces a rear face of the front light-guiding element; the rear face of the front light-guiding element has an optical compensation system, having curved convex or curved concave lens surfaces, for varying the intensity of the light transmitted from said transmission portion to the different graphic areas.

公开(公告)号：US10186925B2

公开(公告)日：2019-01-22

申请号：US15099830

申请日：2016-04-15

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Franco Ciampolini ,  Marco Magri

IPC: H02K3/50 ,  H02K15/00 ,  H02K15/04

Abstract: An electric machine provided with: a stator having a magnetic core longitudinally crossed by a plurality of stator slots; a stator winding having a series of rigid bars, which are “U”-shaped and are inserted through the stator slots defining an entry side, in which the cusps of the “U”-shaped bars are placed, and an exit side, in which the legs of the “U”-shaped bars are placed; the ends of at least two non-adjacent legs are electrically connected to one another by means of a connection bridge; and an insulating support is provided, which houses the connection bridge, is arranged under the connection bridge and has a plurality of through holes, into which some legs are inserted, which have to pass through the insulating support itself.

公开(公告)号：US20190001967A1

公开(公告)日：2019-01-03

申请号：US16021357

申请日：2018-06-28

Applicant: Magneti Marelli S.p.A. ,  Università degli Studi di Parma

Inventor： Piero Micelli ,  Luca Consolini ,  Mattia Laurini ,  Marco Locatelli ,  Axel Furlan ,  Michele Giorelli

IPC: B60W30/06 ,  G05D1/02 ,  G05D1/00 ,  G01C21/34 ,  B60W50/14

Abstract: Path planning method for computing optimal parking maneuvers for road vehicles including the steps of computing a set of value functions of a cost function of parking maneuvers reaching the target set of states as unique viscosity solution of a Hamilton Jacobi Bellman equation, supplying the set of value functions, together with a starting state of the vehicle, as input to the dynamic programming calculation procedure calculating at least the set of vehicle controls. The set of equations modeling the evolution of the state of said road vehicle is a switched system of equations between a first sub-system if the vehicle is in forward motion and a second sub-system if the vehicle is in reverse motion. The cost function takes into account the arrival time a number of direction changes of the road vehicle between forward motion and reverse motion.

公开(公告)号：US10170927B2

公开(公告)日：2019-01-01

申请号：US15804723

申请日：2017-11-06

Applicant: Magneti Marelli S.p.A. ,  Sistemi Sospensioni S.p.A.

Inventor： Andrea Nepote ,  Giordano Greco ,  Piero Antonio Conti

IPC: H02P6/00 ,  H02J7/24 ,  H02P6/04 ,  H02J7/14 ,  B60L11/18 ,  B60L1/00 ,  H02J1/00 ,  B60G13/14

Abstract: An apparatus and a method for managing the energy supplied to a low-voltage system of a vehicle. The low-voltage system includes a battery, which supplies the first voltage on a low-voltage bus. A system for charging the battery includes an alternator for supplying a charging voltage to the battery, and motor-vehicle loads supplied by the battery and/or by the alternator. A high-voltage system operates at a second voltage higher than said first voltage. The high-voltage system includes the vehicle energy-recovery stage. The second voltage is supplied through an intermediate energy-storage system and a DC-DC converter. A control module that carries out energy-management operations at least by the alternator. The second voltage of the DC-DC converter is regulated via a control procedure of a hysteretic type.

公开(公告)号：US20180328303A1

公开(公告)日：2018-11-15

申请号：US15975357

申请日：2018-05-09

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Matteo De Cesare ,  Enrico Brugnoni ,  Nicola Torcolini ,  Federico Monti

IPC: F02D41/24 ,  F02M37/08 ,  F02M37/04 ,  F04B49/06 ,  F02D41/22

CPC classification number: F02D41/2464 ,  F02D41/20 ,  F02D41/221 ,  F02D41/3845 ,  F02D2041/2037 ,  F02D2041/224 ,  F02D2200/025 ,  F02M37/043 ,  F02M37/08 ,  F04B49/065 ,  H01F7/1844 ,  H01F2007/1855 ,  H01F2007/1866

Abstract: A method is described to control an actuation profile of an electromechanical linear actuator device of an internal combustion engine designed to control the movement of a component; the internal combustion engine comprises a sensor, which faces the actuator device and is designed to detect the noise generated by the movement of the component; the method comprises the steps of acquiring, by means of the sensor, the intensity of a signal generated by the impact of the component against a limit stop; identifying a first listening window of the signal associated with said impact; calculating a noise index inside the listening window; comparing the noise index with a reference value; and controlling the actuation profile of the actuator device based on this comparison.

公开(公告)号：US20180264953A1

公开(公告)日：2018-09-20

申请号：US15983371

申请日：2018-05-18

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Danilo Pritelli ,  Franco Ciampolini ,  Rosanna Suglia ,  Gianluca Aurilio

IPC: B60L11/18 ,  H05K7/14 ,  H03K17/16 ,  H02J1/02 ,  H03K17/082

Abstract: An electronic device including an electronic switch M1, an electrical pre-charge circuit and a measurement, command and diagnosis module. The main electronic switch M1 has a first electrical terminal D1, a second electrical terminal S1, and a main driving terminal G1. The main electronic switch M1 is adapted to take, based on a driving signal DRV, depending on the command signal CMD and on an enabling signal ENB, a closed condition or an open condition, wherein the first electrical terminal D1 is respectively connected to or disconnected from the second electrical terminal S1. The pre-charge electrical circuit is adapted to carry out, based on the command signal CMD, a pre-charge operation, aimed at equalizing the electric potentials (V1, V2) of the first and second terminals of the device, before the main electronic switch M1 takes a closed condition, upon of a transition from the open condition.

公开(公告)号：US09926863B2

公开(公告)日：2018-03-27

申请号：US14538079

申请日：2014-11-11

Applicant: Magneti Marelli S.p.A.

Inventor： Marco Panciroli

IPC: F02D23/00 ,  F02B33/44 ,  F02D41/00 ,  F02B37/12 ,  F02B37/18 ,  F02B25/14 ,  F02D13/02 ,  F02D41/14

CPC classification number: F02D41/0007 ,  F02B25/145 ,  F02B37/127 ,  F02B37/183 ,  F02D13/0261 ,  F02D23/00 ,  F02D41/1401 ,  F02D2041/1413 ,  F02D2041/1433 ,  Y02T10/144 ,  Y02T10/18

Abstract: A method to control the wastegate valve wastegate in a turbocharged internal combustion engine suited to allow air to directly flow from the intake manifold to the exhaust manifold; the method providing for determining a control law which provides an objective opening of an actuator controlling the wastegate valve as a function of a contribution in the absence of air flow directly from the intake manifold to the exhaust manifold and a contribution as a function of the quantity of air directly flowing from the intake manifold to the exhaust manifold.

公开(公告)号：US09822747B2

公开(公告)日：2017-11-21

申请号：US14600257

申请日：2015-01-20

Applicant: Magneti Marelli S.p.A.

Inventor： Giovanni Prodi ,  Fabio Sensi ,  Luca Mancini

IPC: F02D41/30 ,  F02M59/36 ,  F02D41/20 ,  F02D41/38

CPC classification number: F02M59/368 ,  F02D41/20 ,  F02D41/30 ,  F02D41/3845 ,  F02D2041/2017 ,  F02D2041/202

Abstract: Method to control an electromagnetic actuator of an internal combustion engine, in particular for a fuel pump of a direct-injection system; wherein the electromagnetic actuator is controlled by an electric current pulse of the Peak&Hold type, i.e. subdivided into a peak phase and a hold phase; the method includes acquiring the initial duration of the peak phase, during which a peak control current is to be supplied to the electromagnetic actuator to control the movement of a component of the electromagnetic actuator moving towards a position defined by a limit stop; and determining the duration of the peak phase by progressively decreasing the initial duration of the peak phase by a first change.

公开(公告)号：US09821679B2

公开(公告)日：2017-11-21

申请号：US14823601

申请日：2015-08-11

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Andrea Stefani ,  Alessandro Fossi ,  Roberto Betro' ,  Marco Raimondi ,  Canio Caterini

IPC: H02P21/00 ,  H02P6/10 ,  H02P6/16 ,  B60L15/02 ,  H02K11/00 ,  H02P6/18 ,  H02P21/32 ,  G01D5/20 ,  G01D5/244

CPC classification number: B60L15/025 ,  B60L3/0038 ,  B60L3/0061 ,  B60L3/12 ,  B60L2220/14 ,  B60L2220/16 ,  B60L2240/421 ,  B60L2240/427 ,  B60L2240/429 ,  G01D5/2073 ,  G01D5/2448 ,  H02K11/0031 ,  H02K11/225 ,  H02P6/183 ,  H02P21/32 ,  H02P2203/11

Abstract: A method for the diagnosis of the offset of the resolver of an electric motor, comprising acquiring a predetermined offset of a resolver associated with the electric motor; in a first transient, supplying an excitation current to the phases of the electric motor. As a consequence of the excitation current, a current established on the axis d of minimum reluctance and a current established on an axis q in phase quadrature with respect to the axis of minimum reluctance are determined. The correctness of the offset of the resolver is diagnosed if the current established on the axis d in the first transient is higher than the current established on the axis d in the second or third transient, and if the current established on the axis q in the first transient is lower than the current established on the axis q in the second or third transient.